New technologies for video conferencing
Traditional video conferencing technologies include: MCU, H.323, frame relay, etc. Video applications based on IP bearer networks will incorporate richer Functions are pushed in front of users. But to use these functions smoothly, users need to pay more attention to some new technology hot spots.
1. LPR (Lost Packet Recovery) technology
It is one of the most effective methods to solve the problem of packet loss in video transmission. In fact, LPR is a method that uses forward error correction. (FEC) method implements a mechanism to cover lost packets. The sending system adds redundant data to the outgoing data stream so that the receiving system can detect and correct errors without requiring the sending system to retransmit the lost information. This ability to correct errors without waiting for network transmission makes FEC ideal for real-time communications such as television broadcasts, IP telephony, and video conferencing.
2. QoS
QoS (Quality of Service), the Chinese name is "Quality of Service". It refers to a network's ability to provide higher priority services, including dedicated bandwidth, jitter control and latency (for real-time and interactive traffic scenarios), packet loss improvement, and designated networks under different WAN, LAN and MAN technologies traffic, etc., while ensuring that the priority given to each traffic flow does not impede the progress of other traffic flows.
QoS is a security mechanism of the network and a technology used to solve problems such as network delay and congestion. Under normal circumstances, if the network is only used for specific application systems without time restrictions, QoS is not required, such as Web applications, or E-mail settings, etc. But it is very necessary for critical applications and multimedia applications. When the network is overloaded or congested, QoS can ensure that important traffic is not delayed or dropped, while ensuring efficient operation of the network.
Since video conferencing is mostly used in key businesses and is transmitted simultaneously with voice and data, it has higher requirements for network transmission quality. Streaming media QoS needs to solve two problems, bandwidth occupation and delay jitter. At present, only a few domestic manufacturers, such as Shigao, have used video conferencing systems with QoS guarantee mechanisms in video conferencing to ensure the stability of video conferencing operations.
A few manufacturers have taken the lead in applying these new technologies in conferences, and one of the best is Shenzhen Shigao, the largest video conferencing provider in China.
In addition, high-definition video conferencing is also a new trend in video conferencing applications and the development direction of the industry, with very good prospects.
Because:
With the advancement of technology and networks, more and more small and medium-sized enterprises have gradually realized the vital role that information construction plays in enterprise development. At the same time, a group of video conferencing product manufacturers led by Shenzhen Shigao are also actively applying new technologies and constantly developing new products. Among them, the new system launched by Shenzhen Shigao in 2010 adopts mainstream MPEG-4, H.263, and H.264 encoding technologies, which can freely adjust the compression ratio and video quality. For the first time, it is the first domestic video conferencing product. Using high-definition technology, it can truly achieve high-definition 1920×1080 to ordinary 176×144 video image resolution, making the video conferencing picture clear and lifelike, with full and bright colors.
With the development of technology, other video conferencing manufacturers will also apply video conferencing to their products like Shenzhen Shigao, realizing the true integration of high-definition video conferencing technology and industry.